How to invest in Treasury bonds — safe alternative to deposits

Guide to Polish Treasury bonds. Types, interest rates, taxation and how to buy bonds online step by step.

12 min czytania

What are Treasury bonds?

Treasury bonds are securities issued by the Treasury. By buying a bond, you lend money to the government, which in return pays you interest for a specified period and returns the capital at the end.

Main advantages:

  • 100% safety — guaranteed by Polish Treasury
  • Higher interest rates than deposits (usually 1-3 p.p. more)
  • No capital gains tax — income exempt from 19% tax
  • Flexibility — can be redeemed before maturity

Types of Treasury bonds available in 2026

1. Fixed-rate bonds

OTS (Three-month Treasury Bonds)

  • Period: 3 months
  • Interest rate: 5.75% annually (February 2026)
  • For whom: Short-term surplus placement
  • Capitalization: At period end

TOZ (Three-month Zero-coupon Bonds)

  • Period: 3 months
  • Mechanism: You buy cheaper, get full value
  • Example: Buy for 985 PLN, get 1000 PLN after 3 months
  • Effective interest rate: ~6.1% annually

2. Inflation-indexed bonds

COI (Four-year Indexed Bonds)

  • Period: 4 years
  • Interest rate: 1.5% + inflation
  • Protection: Full inflation protection
  • Capitalization: Annual

EDO (Retirement Long-term Bonds)

  • Period: 6 years
  • Interest rate: 1.75% + inflation
  • Purpose: Retirement saving
  • Limit: 9,000 PLN annually per person

3. Variable-rate bonds

ROR (Family Annual Bonds)

  • Period: 12 months
  • Interest rate: 6.5% (February 2026)
  • For whom: Families with children (increased limits)
  • Capitalization: Monthly

Bond interest rates — current rates (February 2026)

Bond type Interest rate Period Capitalization
OTS 5.75% 3 months At end
TOZ ~6.1% 3 months Discount
ROR 6.5% 12 months Monthly
COI 1.5% + inflation 4 years Annual
EDO 1.75% + inflation 6 years Annual

Rates current as of 28.02.2026 — check current ones on gov.pl

How to buy Treasury bonds — step by step

Step 1: Go to gov.pl → Treasury bonds

Step 2: Log in through:

  • Trusted Profile
  • mObywatel
  • Bank (ePUAP)

Step 3: Choose bond type and amount

Step 4: Confirm transaction

Step 5: Pay through:

  • Bank transfer (0-24h)
  • BLIK (immediately)
  • Payment card

Method 2: At bank (traditional)

Banks selling bonds:

  • PKO BP
  • Bank Pekao SA
  • mBank
  • ING Bank Śląski
  • Santander Bank Polska

Required documents:

  • ID card
  • PESEL number
  • Bank account number

Method 3: At post office

Available at:

  • Post offices with financial services
  • Post-bank points
  • Selected Polish Post outlets

Treasury bond taxation

Domestic bonds — TAX EXEMPT

Exempt from 19% capital gains tax:

  • All bonds issued by Polish Treasury
  • Municipal bonds of Polish local governments
  • Treasury bills

You don't need to:

  • Pay tax on interest
  • Report in tax return (PIT)
  • Keep additional accounting

Foreign bonds — TAXED

19% capital gains tax on:

  • Corporate bonds
  • Foreign government bonds
  • Bond ETFs

Bond investment strategies

Strategy 1: Bond ladder

Principle: You buy bonds with different maturity dates

Example with 50,000 PLN:

  • 10,000 PLN — OTS (3 months)
  • 15,000 PLN — ROR (12 months)
  • 25,000 PLN — COI (4 years)

Effect:

  • Regular income from redemptions
  • Reinvestment at current rates
  • Protection against interest rate risk

Strategy 2: Barbell

Principle: Part of money in short, part in long bonds

Example:

  • 60% — OTS and TOZ (liquidity)
  • 40% — COI and EDO (higher profitability)

Strategy 3: All-in long-term

For whom: Investors focused on long period

Recommendation:

  • 80% COI (inflation protection)
  • 20% EDO (additional premium for length)

Bonds vs other investments — comparison

Bonds vs Bank deposits

Criterion Treasury bonds Bank deposits
Interest rate 5.75-6.5% 4.5-5.2%
Safety Treasury Guarantee fund up to 100k EUR
Tax 0% 19% capital gains tax
Liquidity Early redemption Usually not possible
Min. amount 100 PLN 1000-10000 PLN

Bonds vs Stocks/ETFs

Criterion Bonds Stocks/ETFs
Risk Very low Medium-high
Potential return 5-7% annually 8-12% annually
Volatility Virtually none High (±20-30%)
Horizon Short-medium Long (5+ years)
Portfolio role Safe base Growth engine

When to choose Treasury bonds?

Bonds ARE a good choice when:

1. You need safety

  • Savings for apartment (1-2 years)
  • Emergency fund
  • Retirement capital (near future)

2. Interest rates are high

  • NBP raises rates (2022-2025)
  • Real rates positive (above inflation)
  • Yield gap vs bank deposits > 1 p.p.

3. You have short investment horizon

  • Up to 2 years — better than stocks
  • 2-5 years — comparable to stocks with less risk

Bonds are BAD choice when:

1. Long-term horizon (10+ years)

  • Stocks/ETFs historically give higher returns
  • Inflation long-term "eats" fixed interest

2. Interest rates falling

  • Fixed-rate bonds lose attractiveness
  • Better to wait for higher rates

3. Very high inflation

  • Even COI may not keep up with sudden price jumps
  • Real rates negative

Treasury bond limits

Annual limits (2026):

Bond type Limit per person Limit per family
OTS No limit No limit
TOZ No limit No limit
ROR 100,000 PLN 300,000 PLN*
COI 100,000 PLN No additional
EDO 9,000 PLN No additional

*For families with children — 100k PLN base + 50k PLN per child

Common bond mistakes

1. Buying only short-term

Problem: Missing higher rates when NBP cuts Solution: Maturity diversification (ladder)

2. Ignoring inflation

Problem: Fixed interest vs rising prices Solution: Mix COI + fixed-rate bonds

3. Early redemption without need

Problem: Loss of part of interest (penalty interest) Solution: Cash flow planning

4. Exceeding limits

Problem: Excess returns to account, no interest
Solution: Monitoring limits in app

Bonds in investment strategy

For young (20-35 years)

Allocation: 10-20% of portfolio Types: OTS, ROR (liquidity) Goal: Emergency fund

For middle-aged (35-50 years)

Allocation: 20-40% of portfolio Types: COI, EDO (inflation protection) Goal: Portfolio stabilization

For older (50+ years)

Allocation: 40-70% of portfolio Types: Mix of all types Goal: Capital safety

Summary

Treasury bonds are an excellent instrument for:

  • Safe storage of financial surpluses
  • Inflation protection (COI, EDO)
  • Supplementing equity-ETF portfolio

Key advantages: ✅ No risk of capital loss ✅ Exemption from capital gains tax
✅ Interest rates higher than deposits ✅ Possibility of early redemption

Monitor your bonds along with other investments in the Freenance app — all assets in one place, clear summaries and forecasts.

Want full control over your finances?

Try Freenance for free
Start today

Your path to financial freedomstarts here

Join thousands of investors who use Freenance to manage their personal finances.

Start for free
14 days free
No credit card
256-bit encryption