Term Deposit vs Government Bonds — What Better Protects Savings in 2026?

Two Safe Havens for Savings

Bank deposits and government bonds are the two most popular "safe" ways to place savings. Both offer guaranteed returns, but they differ in mechanism, interest rates, and flexibility. In the 2026 environment, with inflation still above NBP's target, choosing between them has real financial consequences.

Bank Deposits — How Do They Work?

You deposit money in a bank for a specific time (1 month, 3 months, 6 months, 12 months). The bank pays you interest. After the term, you get capital + interest.

Term Deposit Interest Rates in 2026

• Short-term deposits (1–3 months): 3.5–5.5% (nominal, annually)
• 6-month deposits: 4.0–5.5%
• 12-month deposits: 4.0–5.0%
• Promotional deposits (new funds): up to 7–8% (but for short period and with restrictions)

Interest rates depend on NBP interest rates. The higher the rates — the higher the deposits.

BFG Guarantee

Deposits are covered by the Bank Guarantee Fund guarantee up to 100,000 EUR (about 440,000 PLN) per person per bank. This is one of the strongest protection mechanisms on the market.

Government Bonds — How Do They Work?

You buy bonds directly from the Ministry of Finance (through obligacjeskarbowe.pl or PKO BP). The state borrows money from you and pays interest. The nominal value is 100 PLN per piece.

Types of Retail Bonds (2026)

Guarantee

Government bonds are guaranteed by the State Treasury — this is the highest level of security. The state would have to go bankrupt for you to lose money.

Comparison — Term Deposit vs Bonds

Interest Rates

Deposits offer fixed interest rates, known in advance. In 2026: 4–5.5% under standard conditions.

Fixed-rate bonds (OTS, DOS): comparable, about 5–5.25%.

Inflation-indexed bonds (COI, EDO): variable interest rate — inflation + margin. With 4% inflation, COI gives 5.5%, EDO — 5.75%. With 8% inflation — 9.5% and 9.75% respectively.

Key difference: Inflation-indexed bonds automatically protect against inflation growth. Deposits have fixed interest rates — if inflation rises, your real return drops.

Example: 100,000 PLN for 4 years

COI bonds win when inflation is higher than expected. Deposits win when inflation drops below the deposit interest rate.

Liquidity

Deposit: funds frozen for the deposit period. Breaking = loss of interest (partial or total).

Government bonds: you can redeem before maturity, but with a fee (0.50–2 PLN per piece, depending on type). You lose part of the interest, but not all.

Verdict: Both options have limited liquidity. Deposits are more punitive when broken.

Taxes

• Deposit: 19% Belka tax on interest (automatically deducted by bank)
• Bonds: 19% Belka tax on interest (automatically deducted)

In terms of taxes — identical. But there's one catch: bonds within IKE/IKZE — if you buy through BossaFund or another platform with IKE, bond profits may be tax-exempt.

Minimum Amount

• Deposit: from 500–1,000 PLN (depends on bank)
• Bonds: from 100 PLN (1 bond)

Bonds win in accessibility — you can start from a really small amount.

Combination Strategy

You don't have to choose one. The optimal strategy is:

Safety Cushion (3–6 months expenses)

→ Savings account (immediate access) or 1-month deposit (renewable)

Short-term savings (1–2 years)

→ Deposits or OTS/DOS bonds — you know the interest rate, short horizon

Medium-term savings (2–5 years)

→ COI bonds (4-year) — inflation protection, higher interest than deposits

Long-term savings (5+ years)

→ EDO bonds (10-year) — highest margin above inflation. But with such a long horizon, also consider stock ETFs.

Most Common Mistakes

1. Chasing promotional deposits — banks offer 7–8% for 3 months for new funds, then interest rate drops to 2–3%. You have to watch deadlines and move money
2. Ignoring inflation — 5% deposit with 5% inflation gives 0% real return (and negative after tax). COI/EDO bonds automatically adjust
3. Keeping everything in deposits — for 10+ years, stocks historically beat deposits and bonds. Deposit safety has its price in lost profits
4. Forgetting about tax — 5% gross is about 4.05% net after Belka tax

Summary

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