china-ashare-trading-taxeslisted

A-share stamp duty is charged to the seller only and halved on 2023-08-28, and dividend tax is a step function of holding period - a turnover penalty written into the tax code that a flat symmetric cost model cannot express. TRIGGER - A股印花税, 证券交易印花税, stamp duty, stamp tax, seller side only, 单边征收, 印花税减半, 0.05%, 2023-08-28, A股股息红利税, 股息红利差别化, dividend tax by holding period, 持股期限, 一个月, 一年, 财税〔2015〕101号, dividend capture China, A-share transaction cost model, "what does an A-share round trip actually cost", backtesting Chinese equities net of tax. Modelling assumptions for backtests, not tax advice, and for an individual resident investor only. SKIP for US wash sales and lot matching (wash-sale-rules, tax-lot-matching-and-cost-basis), for reporting an after-tax Sharpe (after-tax-backtesting), and for A-share data, T+1 and price limits (china-trading-stack).
howard-lynn-ye/fin-skills · ★ 1 · AI & Automation · score 77

Install: claude install-skill howard-lynn-ye/fin-skills

# China A-share trading taxes **Two taxes decide what an A-share round trip costs, and a flat symmetric basis-point model can express neither of them. One is charged to the seller only and halved in the middle of any sample that spans 2023-08-28. The other charges you for holding briefly.** These are **modelling assumptions for a backtest, not tax advice**, and everything here is for an **individual resident investor**. Institutions, funds, QFII/RQFII and Stock Connect investors are treated differently and none of that is in this file. Confirm current law with a qualified professional before relying on any of it. ✅ Measured comes from `scripts/ashare_taxes.py` — numpy + pandas, seed 20260909, one seeded 2021→2025 path that deliberately spans the rate cut, **under 1 s**. ✅ source-verified material was read on **2026-09-09** at 国家税务总局 (`fgk.chinatax.gov.cn`, `www.chinatax.gov.cn`) and 财政部 (`www.mof.gov.cn`). ## 1. ✅ source-verified — stamp duty is one-sided, and it moved **中华人民共和国印花税法, Article 3**, in force from **2022-07-01**, verbatim: > 本法所称证券交易，是指转让在依法设立的证券交易所、国务院批准的其他全国性证券交易场所交易的股票和 > 以股票为基础的存托凭证。**证券交易印花税对证券交易的出让方征收，不对受让方征收。** *Securities transaction stamp duty is levied on the transferor, and not on the transferee.* The attached 印花税税目税率表 sets the rate at **千分之一 (0.1%) of 成交金额**, and Article 5 makes the transaction amount the tax base. **财政部税务总局公告2023年第39号《关于减半征收证券交易印花税的公告》**, issued 2023-08-27, verbatim: *"为活跃资本市场、提振投资者信心，**自2023年8月28日起，证券交易印花税实施减半征收**。"* 0.1% ×