| H. Aguirre and A. Aguirre | April | 2026 | 2026-OTA-199 | Nonprecedential | Federal adjustment |
| D. Fronk | April | 2026 | 2026-OTA-198 | Nonprecedential | Estimation of income (wages) (R&TC 19087); late filing penalty (R&TC 19131); demand penalty (R&TC 19133); filing enforcement fee (R&TC 19254); interest abatement |
| R. Mitchell and J. Mitchell | April | 2026 | 2026-OTA-196P | Pending Precedential | Involuntary conversion of property (IRC 1033) |
| HRA Highlander LLC and HRA Woodlake Village LLC | April | 2026 | 2026-OTA-193 | Nonprecedential | Per-partner late filing penalty ((R&TC 19172) |
| N. Gomez Calva | April | 2026 | 2026-OTA-192 | Nonprecedential | OTA jurisdiction (perfected claim for refund) (Reg. 30103, 30203) |
| Downs Investments, LLC | April | 2026 | 2026-OTA-188 | Nonprecedential | Late payment penalty (R&TC 19132); interest abatement |
| J. Dunlap | April | 2026 | 2026-OTA-187 | Nonprecedential | Statute of limitations on claim for refund (R&TC 19306) |
| Estate of B. Granados (dec'd) | April | 2026 | 2026-OTA-186 | Nonprecedential | Statute of limitations on claim for refund (R&TC 19306) |
| Ferus Natural Gas Fuels LP | April | 2026 | 2026-OTA-185 | Nonprecedential | Late filing penalty (R&TC 19172); interest abatement |
| L. Coleman | April | 2026 | 2026-OTA-184 | Nonprecedential | Sale of securities (wash sale, calculation of capital gain) (IRC 1091) |
| M. Theerathada and D. Theerathada | April | 2026 | 2026-OTA-183 | Nonprecedential | Late filing penalty (R&TC 19131) |
| S. Taylor and B. Taylor | April | 2026 | 2026-OTA-180 | Nonprecedential | Late payment penalty (R&TC 19132); estimated tax penalty (R&TC 19136) |
| T. Miller | April | 2026 | 2026-OTA-178 | Nonprecedential | Gross income (wages, combat zone) (IRC 61, R&TC 17131) |
| Mara Management, LLC | April | 2026 | 2026-OTA-177 | Nonprecedential | Late filing penalties (R&TC 19131, 19172.5) |
| P. Green | April | 2026 | 2026-OTA-176 | Nonprecedential | Statute of limitations on claim for refund (R&TC 19306) |
| B. Weeks and M. Weeks | April | 2026 | 2026-OTA-175 | Nonprecedential | Business loss (IRC 165(c)(1)); home office (IRC 280A(c)(1)) |
| M. Merrill and J. Merrill | April | 2026 | 2026-OTA-174 | Nonprecedential | Statute of limitations on claim for refund (R&TC 19306) |
| J. Sun and B. Huang | April | 2026 | 2026-OTA-173 | Nonprecedential | Demand penalty (R&TC 19133); collection cost recovery fee (R&TC 19254) |
| Level 10 Construction, LP | April | 2026 | 2026-OTA-172 | Nonprecedential | Late payment penalty (R&TC 19132); interest abatement |
| J. Lin and D. Lin | April | 2026 | 2026-OTA-171 | Nonprecedential | Estimation of income (wages) (R&TC 19087); frivolous appeal penalty (R&TC 19714) |
| D. Meyer | April | 2026 | 2026-OTA-169SCP | Nonprecedential | Statute of limitations on claim for refund (R&TC 19306) |
| M. Vogel and Y. Vogel | April | 2026 | 2026-OTA-168SCP | Nonprecedential | Statute of limitations on claim for refund (R&TC 19306) |
| I. Roa | April | 2026 | 2026-OTA-167SCP | Nonprecedential | Statute of limitations on claim for refund (R&TC 19306) |
| S. Amador and L. Amador | March | 2026 | 2026-OTA-164 | Nonprecedential | Gross income (wages) (IRC 61); frivolous appeal penalty (R&TC 19714) |
| Outdoor Prolink LLC | March | 2026 | 2026-OTA-163 | Nonprecedential | Doing business (LLC annual tax, LLC annual fee) (R&TC 23101, 17941, 17942); Public Law 86-272; late filing penalty (R&TC 19131); per-member late filing penalty (R&TC 19172); demand penalty (R&TC 19133); filing enforcement fee (R&TC 19254); Interest abatement |
| P. Cusson | March | 2026 | 2026-OTA-162 | Nonprecedential | Statute of limitations on claim for refund (R&TC 19306) |
| G. Bahrami | March | 2026 | 2026-OTA-161 | Nonprecedential | Statute of limitations on claim for refund (R&TC 19306) |
| A. Lertvanich | March | 2026 | 2026-OTA-160 | Nonprecedential | Statute of limitations on claim for refund (R&TC 19306) |
| Setamel Corp | March | 2026 | 2026-OTA-158 | Nonprecedential | Doing business (minimum tax) (R&TC 23101, 23153); late filing penalty (R&TC 19131); demand penalty (R&TC 19133); filing enforcement fee (R&TC 19254); interest abatement |
| J. Lao | March | 2026 | 2026-OTA-156 | Nonprecedential | Federal adjustment |
| J. Cowdrey and J. Cowdrey | March | 2026 | 2026-OTA-155 | Nonprecedential | Statute of limitations on claim for refund (R&TC 19306) |
| A. Sciarretta | March | 2026 | 2026-OTA-154 | Nonprecedential | Late filing penalty (R&TC 19131); demand penalty (R&TC 19133); filing enforcement cost recovery fee (R&TC 19254); interest abatement |
| Maple Valley Investments LLC | March | 2026 | 2026-OTA-151 | Nonprecedential | Late payment penalty (R&TC 19132); estimated tax penalty (corporation) (R&TC 19142, 19144) |
| Bruce Horng J. Lin, MD, PC | March | 2026 | 2026-OTA-150 | Nonprecedential | Late payment penalty (R&TC 19132); estimated tax penalty (corporation) (R&TC 19142, 19144) |
| Z. He | March | 2026 | 2026-OTA-148 | Nonprecedential | Estimation of income (R&TC 19087); late filing penalty (R&TC 19131) |
| S. Hansen | March | 2026 | 2026-OTA-146 | Nonprecedential | Estimation of income (R&TC 19087); late filing penalty (R&TC 19131); demand penalty (R&TC 19133); filing enforcement fee (R&TC 19254); interest abatement |
| P. Appelblom and N. Appelblom | March | 2026 | 2026-OTA-145 | Nonprecedential | Statute of limitations on claim for refund (R&TC 19306) |
| S. Tanner and L. Tanner | March | 2026 | 2026-OTA-144 | Nonprecedential | Statute of limitations on claim for refund (R&TC 19306) |
| D. Shelley | March | 2026 | 2026-OTA-143 | Nonprecedential | Statute of limitations on claim for refund (R&TC 19306) |
| Fishbone Apparel, Inc. | March | 2026 | 2026-OTA-141 | Nonprecedential | Doing business in California (R&TC 23101, 23101(b)); late filing penalty (R&TC 19131); filing enforcement fee (R&TC 19254); interest abatement |
| D. Gabriner | March | 2026 | 2026-OTA-136 | Nonprecedential | Statute of limitations on claim for refund (R&TC 19306) |
| MGG Enterprise, Inc. | March | 2026 | 2026-OTA-135 | Nonprecedential | Doing business in California (employee in California) (R&TC 23101, 23153); late filing penalty (R&TC 19131) |
| K. Painchaud-Bullis and J. Bullis | March | 2026 | 2026-OTA-134SCP | Nonprecedential | Statute of limitations on claim for refund (R&TC 19306); financial disability (R&TC 19316) |
| S. Wilson | March | 2026 | 2026-OTA-133SCP | Nonprecedential | Statute of limitations on claim for refund (R&TC 19306) |
| H. Machuca | March | 2026 | 2026-OTA-132SCP | Nonprecedential | Statute of limitations on claim for refund (R&TC 19306) (no exception for fact taxpayer was in prison) |
| W. LaRose and C. LaRose | March | 2026 | 2026-OTA-131SCP | Nonprecedential | Statute of limitations on claim for refund (R&TC 19306) |
| G. Gobel and R. Gobel - PFR Opinion | March | 2026 | 2026-OTA-130SCP | Nonprecedential | Standard for granting petition for rehearing |
| G. Gobel and R. Gobel | March | 2026 | 2026-OTA-129SCP | Nonprecedential | Statute of limitations on claim for refund (R&TC 19306) |
| P. Caldwell - PFR Opinion | March | 2026 | 2026-OTA-128 | Nonprecedential | Standard for granting petition for rehearing (newly discovered evidence, contrary to law, error in law) |
| P. Caldwell | March | 2026 | 2026-OTA-127 | Nonprecedential | Estimation of income (R&TC 19087); late filing penalty (R&TC 19131) |
| S. Farah - PFR Opinion | March | 2026 | 2026-OTA-126 | Nonprecedential | Standard for granting petition for rehearing (contrary to law) |
| S. Farah | March | 2026 | 2026-OTA-125 | Nonprecedential | Arbitration award to prior spouse [husband] was taxable to wife in 2015 tax year; transfer incident to divorce (IRC 61; IRC 1041) |
| G. Scholler and S. Scholler - PFR Opinion | March | 2026 | 2026-OTA-124 | Nonprecedential | Standard for granting petition for rehearing (irregularity in proceeding, insufficient evidence, contrary to law) |
| G. Scholler and S. Scholler | March | 2026 | 2026-OTA-123 | Nonprecedential | Bad debt deduction (IRC 166); worthless stock deduction (IRC 165(g)); accuracy-related penalty (R&TC 19164); interest abatement |
| N. Edwards | February | 2026 | 2026-OTA-115 | Nonprecedential | Late filing penalty (R&TC 19131) |
| A. Sciarretta | February | 2026 | 2026-OTA-114 | Nonprecedential | Late filing penalty (R&TC 19131) demand penalty (R&TC 19133); filing enforcement fee (R&TC 19254); interest abatement |
| Green Flush Technologies LLC | February | 2026 | 2026-OTA-112 | Nonprecedential | Per-partner late filing penalty (R&TC 19172); demand penalty (R&TC 19133); filing enforcement fee (R&TC 19254); interest abatement |
| D. Kendall and R. Kendall | February | 2026 | 2026-OTA-111 | Nonprecedential | Statute of limitations on claim for refund (R&TC 19306) |
| B. Upadhyaya | February | 2026 | 2026-OTA-110 | Nonprecedential | Estimation of income (R&TC 19087); late filing penalty (R&TC 19131); demand penalty (R&TC 19133); filing enforcement fee (R&TC 19254); interest abatement |
| Piilani Gardens, LLC | February | 2026 | 2026-OTA-109 | Nonprecedential | Late payment penalty (R&TC 19132) |
| A1 Trucking Inc | February | 2026 | 2026-OTA-108 | Nonprecedential | Late filing penalty (R&TC 19131); per-shareholder late filing penalty (R&TC 19172.5); estimated tax penalty (corporation) (R&TC 19142, 19144); collection cost recovery fee (R&TC 19254); interest abatement |
| G. Schmierer | February | 2026 | 2026-OTA-107 | Nonprecedential | Federal adjustment |
| B. Oren | February | 2026 | 2026-OTA-105 | Nonprecedential | Estimation of income (R&TC 19087); filing requirement (R&TC 18501); late filing penalty (R&TC 19131) |
| F. Cervantes | February | 2026 | 2026-OTA-102 | Nonprecedential | Statute of limitations on claim for refund (R&TC 19306) |
| Buzzworthy Cleaning LLC | February | 2026 | 2026-OTA-100 | Nonprecedential | Filing requirement (doing business) (R&TC 18601, 23101, 23153); late filing penalty (R&TC 19131); demand penalty (R&TC 19133); per-shareholder late filing penalty (R&TC 19172.5); filing enforcement fee (R&TC 19254) |
| C. Cardinal and B. Cardinal | February | 2026 | 2026-OTA-099 | Nonprecedential | Worthless stock deduction (IRC 165(a); 165(g)); theft loss (IRC 165(a); 165(c)) |
| P. Matheson and R. Matheson | February | 2026 | 2026-OTA-098 | Nonprecedential | Late filing penalty (R&TC 19131) |
| D. Jones | February | 2026 | 2026-OTA-096 | Nonprecedential | Other state tax credit (OSTC) |
| J. Dangermond and L. Dangermond | February | 2026 | 2026-OTA-095 | Nonprecedential | Late payment penalty (R&TC 19132); estimated tax penalty (R&TC 19136); interest abatement |
| North Bay Pressure Washing, Inc. | February | 2026 | 2026-OTA-094 | Nonprecedential | Late payment penalty (R&TC 19132); estimated tax penalty (corporation) (R&TC 19142, 19144); interest abatement |
| D. Eshbaugh | February | 2026 | 2026-OTA-093 | Nonprecedential | Statute of limitations on claim for refund (R&TC 19306) |
| M. Cardoza and C. Cardoza | February | 2026 | 2026-OTA-092 | Nonprecedential | Federal adjustment |
| D. Neylon and L. Neylon | February | 2026 | 2026-OTA-091 | Nonprecedential | Gross income (wages, subtraction) (IRC 61); interest abatement |
| T. Gibbs and S. Gibbs | February | 2026 | 2026-OTA-089 | Nonprecedential | Federal adjustment; accuracy-related penalty (R&TC 19164); interest abatement |
| R. Mosteller | February | 2026 | 2026-OTA-088 | Nonprecedential | Estimation of income (R&TC 19087); late filing penalty (R&TC 19131); demand penalty (R&TC 19133); filing enforcement fee (R&TC 19254); interest abatement |
| C. Glatzhofer | February | 2026 | 2026-OTA-087 | Nonprecedential | Federal adjustment; accuracy-related penalty (R&TC 19164) |
| P. Rogers (Dec'd) | February | 2026 | 2026-OTA-086 | Nonprecedential | Estimation of income (R&TC 19087); late filing penalty (R&TC 19131); demand penalty (R&TC 19133); filing enforcement fee (R&TC 19254); interest abatement |
| D. Newell | February | 2026 | 2026-OTA-085 | Nonprecedential | Statute of limitations on claim for refund (R&TC 19306) |
| S. Kelly | February | 2026 | 2026-OTA-081 | Nonprecedential | Residency (R&TC 17041); estimation of income (R&TC 19087); late filing penalty (R&TC 19131); filing enforcement fee (R&TC 19254) |
| EWV, LLC; A. Abady and M. Abady; S. Hashem and F. Hashem; F. Kanani and J. Abrams. | February | 2026 | 2026-OTA-080P | Precedential | Like-kind exchange (exchange expenses, constructive receipt of escrow funds, taxable boot) (IRC 1031); interest abatement |
| D. Bobeck and K. Bobeck | February | 2026 | 2026-OTA-079 | Nonprecedential | Statute of limitations on claim for refund (R&TC 19306) |
| M. Mojaddadi | February | 2026 | 2026-OTA-078SCP | Nonprecedential | Statute of limitations on claim for refund (R&TC 19306) |
| Filament Lighting, LLC | February | 2026 | 2026-OTA-077SCP | Nonprecedential | Late payment penalty (R&TC 19132); interest abatement |
| C. Strickland | February | 2026 | 2026-OTA-076SCP | Nonprecedential | Statute of limitations on claim for refund (R&TC 19306); financial disability (R&TC 19316) |
| Mary M. Bulley 2003 Trust | February | 2026 | 2026-OTA-075SCP | Nonprecedential | Late payment penalty (R&TC 19132) |
| Peak Travel Group, R. Peak and L. Peak - PFR Opinion | February | 2026 | 2026-OTA-072 | Nonprecedential | Standard for granting petition for rehearing (insufficient evidence, error in law) |
| Peak Travel Group; R. Peak and L. Peak | February | 2026 | 2026-OTA-071 | Nonprecedential | Fair market value (appraisal, market approach, income approach, asset-based approach); installment sale (installment obligation, earn-out) (R&TC 24672) |
| N. Carroll - PFR Opinion | February | 2026 | 2026-OTA-068 | Nonprecedential | Standard for granting petition for rehearing (newly discovered evidence) |
| N. Carroll | February | 2026 | 2026-OTA-067 | Nonprecedential | Nonresident (California source income) (duty days, working days) (R&TC 17951; Reg. 17951-5) |
| E. Fresquez | January | 2026 | 2026-OTA-061 | Nonprecedential | Estimation of income (R&TC 19087); late filing penalty (R&TC 19131) |
| L. Goetz and R. Goetz | January | 2026 | 2026-OTA-060 | Nonprecedential | Statute of limitations on claim for refund (R&TC 19306); financial disability (R&TC 19316) |
| C. Felker | January | 2026 | 2026-OTA-058 | Nonprecedential | Estimation of income (R&TC 19087); late filing penalty (R&TC 19131); interest abatement |
| W. DeBernardi and D. DeBernardi | January | 2026 | 2026-OTA-056 | Nonprecedential | Late filing penalty (R&TC 19131) |
| M. Lister | January | 2026 | 2026-OTA-055 | Nonprecedential | Statute of limitations on claim for refund (R&TC 19306) |
| M. Swanson and B. Swanson | January | 2026 | 2026-OTA-053 | Nonprecedential | Late filing penalty (R&TC 19131); interest abatement |
| APlusLives (A+Lives) L.L.C_ | January | 2026 | 2026-OTA-052P | Precedential | Annual minimum tax (LLC) (R&TC 17941); per-partner (LLC) late filing penalty (R&TC 19172); demand penalty (R&TC 19133); filing enforcement fee (R&TC 19254) |
| A. Palaigos | January | 2026 | 2026-OTA-050 | Nonprecedential | Late filing penalty (R&TC 19131); demand penalty (R&TC 19133); filing enforcement fee (R&TC 19254); interest abatement |
| S. Mallur and P. Mallur | January | 2026 | 2026-OTA-047 | Nonprecedential | Statute of limitations on claim for refund (R&TC 19306) |
| W. Reusch and S. Reusch | January | 2026 | 2026-OTA-046 | Nonprecedential | Late payment penalty (R&TC 19132); estimated tax penalty (R&TC 19136) |
| P. Gleason | January | 2026 | 2026-OTA-045 | Nonprecedential | Statute of limitations on claim for refund (R&TC 19306) |
| A. Ladi and M. Ladi | January | 2026 | 2026-OTA-043 | Nonprecedential | Residency (R&TC 17041); gross income (R&TC 17071; IRC 61); renter's credit (R&TC 17053.5) |
| R. Goedl and P. Goedl | January | 2026 | 2026-OTA-042 | Nonprecedential | Statute of limitations on claim for refund (R&TC 19306) |
| G. Oliveira | January | 2026 | 2026-OTA-041 | Nonprecedential | Federal adjustment; late filing penalty (R&TC 19131); accuracy-related penalty (R&TC 19164; IRC 6662) |
| B. Morris and D. Morris | January | 2026 | 2026-OTA-039 | Nonprecedential | Noneconomic substance transaction (NEST) penalty (R&TC 19774); interest-based (IB) penalty (R&TC 19777) |
| OTC Global Foundation | January | 2026 | 2026-OTA-038 | Nonprecedential | Charitable exemption (R&TC 23701d); charitable contribution (charitable deduction) (R&TC 24357, 24359; IRC 170); business expense (IRC 162, 274(d)); taxable gross receipts vs capital contributions (IRC 118); interest abatement |
| D. Archer | January | 2026 | 2026-OTA-037 | Nonprecedential | Estimation of income (R&TC 19087); late filing penalty (R&TC 19131) |
| A. Varela and J. Varela | January | 2026 | 2026-OTA-036 | Nonprecedential | Timeliness of NPA (R&TC 19755); abusive tax avoidance transaction (R&TC 19753) ; economic substance; ESOP; noneconomic substance transaction (NEST) penalty (R&TC 19774); interest-based (IB) penalty (R&TC 19777); federal adjustment; accuracy-related penalty (R&TC 19164) |
| G. Dolofan | January | 2026 | 2026-OTA-035 | Nonprecedential | Estimation of income (R&TC 19087); late filing penalty (R&TC 19131); demand penalty (R&TC 19133); filing enforcement fee (R&TC 19254); interest abatement |
| R. Caldwell and P. Caldwell | January | 2026 | 2026-OTA-034 | Nonprecedential | Statute of limitations on claim for refund (R&TC 19306) |
| G. Haas | January | 2026 | 2026-OTA-033 | Nonprecedential | Electronic payment (e-pay) penalty (R&TC 19011.5) |
| L. Hackney (Dec'd) | January | 2026 | 2026-OTA-032 | Nonprecedential | Statute of limitations on claim for refund (R&TC 19306); financial disability (R&TC 19316) |
| Ipenzing LLC | January | 2026 | 2026-OTA-031 | Nonprecedential | Late filing penalty (R&TC 19131); per-shareholder late filing penalty (R&TC 19172.5); estimated tax penalty (R&TC 19142, 19144); interest abatement |
| A. Gates | January | 2026 | 2026-OTA-030 | Nonprecedential | Statute of limitations on claim for refund (R&TC 19306) |
| L. Gardner | January | 2026 | 2026-OTA-029 | Nonprecedential | Statute of limitations on claim for refund (R&TC 19306); financial disability (R&TC 19316) |
| G. Rebish (Dec'd) | January | 2026 | 2026-OTA-027 | Nonprecedential | Statute of limitations on claim for refund (R&TC 19306); financial disability (R&TC 19316) |
| B. Tormey and G. Tormey | January | 2026 | 2026-OTA-024 | Nonprecedential | Statute of limitations on claim for refund (R&TC 19306) |
| M. Maciel and D. Berryman | January | 2026 | 2026-OTA-023 | Nonprecedential | Statute of limitations on claim for refund (R&TC 19306) |
| R. Garcia and M. Garcia - Opinion on Severed Issues | January | 2026 | 2026-OTA-022P | Precedential | OTA does not have jurisdiction to apportion Tribal reservation-sourced income (constitutional issues, federal preemption, apportionment) |
| R. Garcia and M. Garcia - Opinion on Second Severed Issue | January | 2026 | 2026-OTA-021P | Precedential | Taxation of reservation-source income (R&TC 17131.7) |
| M. Amin and N. Amin | January | 2026 | 2026-OTA-020 | Nonprecedential | Statute of limitations on claim for refund (R&TC 19306) |
| D. Gonzalez | January | 2026 | 2026-OTA-019 | Nonprecedential | Statute of limitations on claim for refund (R&TC 19306) |
| Notfriends, Inc. | January | 2026 | 2026-OTA-018 | Nonprecedential | Late payment penalty (R&TC 19132); estimated tax penalty (corporation) (R&TC 19142, 19144); interest abatement |
| P. Guinther | January | 2026 | 2026-OTA-017SCP | Nonprecedential | Statute of limitations on claim for refund (R&TC 19306) |
| R. Balakrishnan and S. Padmanabhan | January | 2026 | 2026-OTA-016SCP | Nonprecedential | Late payment penalty (R&TC 19132); estimated tax penalty (R&TC 19136); interest abatement |
| Barnhill Partners LLC | January | 2026 | 2026-OTA-015SCP | Nonprecedential | Per-partner (LLC member) late filing penalty (R&TC 19172) |
| L. Ostarello | January | 2026 | 2026-OTA-014SCP | Nonprecedential | Statute of limitations on claim for refund (R&TC 19306) |
| D. Hughes | January | 2026 | 2026-OTA-013SCP | Nonprecedential | Statute of limitations on claim for refund (R&TC 19306) |
| J. Tatom and R. Minetto - PFR Opinion | January | 2026 | 2026-OTA-012 | Nonprecedential | Standard for granting petition for rehearing |
| J. Tatom and R. Minetto | January | 2026 | 2026-OTA-011 | Nonprecedential | Federal adjustment |
| M. McGuire - PFR Opinion | January | 2026 | 2026-OTA-008 | Nonprecedential | Standard for granting petition for rehearing (irregularity in proceeding, error in law, contrary to law) |
| M. McGuire | January | 2026 | 2026-OTA-007 | Nonprecedential | Estimation of income (R&TC 19087); late filing penalty (R&TC 19131) |
| A. Keshishian and E. Keshishian - PFR Opinion | January | 2026 | 2026-OTA-004 | Nonprecedential | Standard for granting petition for rehearing |
| A. Keshishian and E. Keshishian | January | 2026 | 2026-OTA-003 | Nonprecedential | Late payment penalty (R&TC 19132); estimated tax penalty (R&TC 19136) |
| J. Lin and D. Lin - PFR Opinion | January | 2026 | 2026-OTA-002 | Nonprecedential | Standard for granting petition for rehearing (contrary to law, error in law, insufficient evidence, due process) |
| J. Lin and D. Lin | January | 2026 | 2026-OTA-001 | Nonprecedential | Gross income (IRC 61); estimation of income (R&TC 19087); late filing penalty (R&TC 19131); frivolous return penalty (R&TC 19179); frivolous appeal penalty (R&TC 19714; Reg. 30217) |