You can usually claim a mix of “automatic” deductions (like the standard deduction) plus specific expenses that the tax law lets you write off, but what you can claim depends heavily on your country, income type, and whether you’re an employee, self‑employed, or an investor.

Below assumes a typical individual in a system similar to the U.S./other major Western countries in 2026; always check local rules or a professional before filing.

First big choice: standard vs itemized

Most systems give you a standard deduction you can take without tracking receipts, or you can “itemize” and claim actual deductible expenses if they’re higher.

  • Standard deduction is a flat amount that reduces your taxable income; it’s designed so many people never need to itemize.
  • Itemizing only makes sense if things like mortgage interest, taxes, and charity donations together exceed your standard deduction.

Common deductions most people look at

These are some of the most widely available deductions in systems similar to the U.S. federal income tax rules.

  • Retirement contributions to traditional accounts (like many workplace plans or traditional IRAs) can reduce taxable income, subject to limits.
  • Student loan interest, often up to a capped amount per year if your income is under certain thresholds.
  • Health Savings Account (HSA) contributions where allowed, which can be deductible and grow tax‑favored.
  • Certain self‑employment expenses if you run a side business or freelance.
  • Educator expenses for classroom supplies if you’re a qualifying teacher.

Deductions if you itemize

If you skip the standard deduction and itemize, typical deductible items include:

  • Home mortgage interest on eligible loans, within set limits.
  • State and local taxes (SALT), often with an annual cap.
  • Charitable donations to qualifying organizations, with documentation.
  • Medical and dental expenses, but usually only the portion over a percentage of your income.
  • Certain home‑office and business‑use‑of‑home costs if you’re self‑employed.

Some systems are re‑expanding or tweaking itemized deductions (for example, making private mortgage insurance and some new worker‑related deductions available again in 2026‑style rules).

Newer / special‑case deductions appearing in 2026‑style rules

Recent changes in some tax systems add or enhance deductions targeted at workers and seniors.

  • Extra standard deduction amounts for people age 65+ (and sometimes for people who are blind), increasing the baseline deduction.
  • New or expanded deductions for qualifying overtime pay and tips for some employees, subject to caps and eligibility rules.
  • Enhanced deductions for car loan interest on certain qualifying personal vehicles in some jurisdictions from 2026 onward.

Because these are new and highly specific, checking your country’s tax authority guidance for the year you’re filing is essential.

Things you usually cannot deduct

Many everyday personal costs are not deductible even if they feel “necessary.”

  • Regular commuting costs, personal clothing, and ordinary living expenses.
  • Most personal entertainment, non‑work travel, and groceries.
  • Most unreimbursed employee expenses in systems that have limited or eliminated that category.

How to figure out what you can claim

Because what tax deductions you can claim depends on your country and your situation, use this checklist:

  1. Identify your country and tax year and look up that tax authority’s list of deductions for individuals.
  1. Decide whether your likely itemized deductions will exceed the standard deduction for your filing status.
  1. List special factors:
    • Self‑employed or side hustle
    • Mortgage / property taxes
    • Large medical bills
    • Significant charitable giving
    • Student loans or major education costs
  2. If numbers are big or your situation is complex, run the scenarios in tax software or ask a qualified tax professional.

If you tell more about your country, whether you’re employed or self‑employed, and your main expense categories, a more tailored list of “what tax deductions can I claim” for your situation is possible.

Information gathered from public forums or data available on the internet and portrayed here.