Identifier: C5T3L2 · Revision: 2026-10-26 · Classification: domestic

Decision and objectives

The practical task is to identify residency, investor status and taxable-event facts before choosing a rule. Make the decision reproducible: name the exposure, time horizon, cash requirement and comparison baseline before selecting a product.

Objectives: Identify residency, investor status and taxable-event facts before choosing a rule; Separate withholding from final liability and declaration; Reconcile a supplied fictional tax credit schedule.

Prerequisite: C5T3L1; completed Classes 1–4 and the Stock Market School foundation or Forex School foundation. Every example is hypothetical. Prices, dates, rates, fees, contract factors, policies and tax schedules are supplied teaching inputs, not current offers or legal parameters. No live account is needed.

Mechanics

Tax residence, citizenship, account location and investment currency answer different questions. An individual and a corporation can face different regimes. Withholding is collection at source; depending on the actual rule it may be final, creditable or require further reporting. Declaration is an obligation determined by the applicable income category and facts, not simply by whether cash was withheld.

Use an evidence record: income year, residence and business/individual status, instrument legal form, issuer and source jurisdiction, acquisition and disposal dates, coupon/distribution and realization dates, taxable components, withholding certificates, treaties if relevant and effective legal changes. A product nickname such as foreign fund does not answer these fields.

Price and return drivers

Under a supplied hypothetical creditable-tax schedule, additional tax = max(total assessed liability − accepted withholding credit, 0). Net investment cash = gross income − costs − actual withholding − additional tax, avoiding deduction of the total assessed amount and the same withholding again. Refunds need an explicit eligibility and collection assumption; do not presume instant cash.

Worked case

Hypothetical case only: Turkey-resident individual, nonbusiness investment, income year 2026, instrument acquired 15 January 2026 and sold 20 October 2026. A fictional teaching rule effective 1 January 2026 treats TRY 20,000 gain and TRY 3,000 coupon as taxable, allows TRY 1,000 costs, assesses 20% on the resulting TRY 22,000 base and accepts TRY 3,000 withheld as credit. Liability TRY 4,400; additional payment TRY 1,400; economic net 23,000 − 1,000 − 3,000 − 1,400 = TRY 17,600. None of those rates, allowance or dates is an actual legal conclusion for this security.

Adverse case

If the supplied alternative schedule makes the TRY 3,000 withholding final only on the coupon, it cannot automatically offset tax on a separately declared gain. If residence or business status changes, the initial rule selection may be wrong. A missing withholding certificate can make the assumed credit uncertain even when the broker statement shows a deduction. Cash availability also differs if tax is paid months after trading proceeds are spent.

Practical use

Use GIB's guide and effective legal publications for the identified year and investor. The February 2026 investment-income guide concerns 2025 individual income; the temporary article 67 guide has acquisition-sensitive tables and must be read with subsequent amendments. Preserve transaction documents and official rule excerpts. Obtain specific advice for unresolved actual cross-border classification rather than invent a single portfolio tax rate.

Use permitted domestic access routes and the actual instrument documents. Verify intermediary authority, investor eligibility, order/redemption terms, settlement, custody and executable size before implementation. Reconcile spread and commissions, funding, collateral, custody, product expenses, conversion and exit charges; an amount already embedded in a fill or fund unit price is not deducted again. A published mark or product description does not promise an executable price or liquidity.

Tax is excluded unless a numerical schedule is expressly supplied as hypothetical. For actual rules record income year, residence and individual/corporate status, instrument and acquisition/contract dates, taxable event and rule effective date. The GIB investment-income guide, checked 2026-10-26, covers 2025 individual income; its 2026 publication date alone cannot settle a 2026 liability.

Decision boundaries

Calculate net returns only after identifying which rule is being applied. A supplied fictional schedule is useful for learning cash reconciliation but must never be published as a Turkish rate. Defer a tax-sensitive trade if the missing classification or evidence could overturn the net comparison.

Practice and references

Exercise: fictional 2026 resident-individual schedule, acquisition 1 February 2026, disposal 1 September 2026; taxable gain TRY 10,000, deductible costs TRY 500, assessed rate 15%, accepted withholding TRY 1,000. Solution: base TRY 9,500; liability TRY 1,425; additional TRY 425; net cash gain 10,000 − 500 − 1,000 − 425 = TRY 8,075. Withholding is credited once.

Takeaway: Reconcile a supplied fictional tax credit schedule with the cash dates, costs and remaining risks stated.

Product card: portfolio-decision-record. Formula: Supplied creditable withholding reconciliation. Glossary: Withholding, Taxable event, Tax residence. Next lesson: C5T3L3. Topic test.

Sources checked 2026-10-26:

Shared reference guide