Firm price up front
Pricing
Two ways to send a letter — both with a firm price up front. Below is the formula the price is computed from, and Česká pošta's current tariff.
One-off
from 50 CZK / letter
- No account, no sign-up
- Firm price up front from the PDF preview
- Card payment (Stripe); the letter mails right after payment
Credit
top-up from 500 CZK
- For agents and frequent senders — no card per letter
- Auto-recharge: the agent never stalls
- History and tracking on your account
Counter price — without the trip or the queue
Comparing a stamp to an online letter is not a fair fight in either direction: at the counter you still have to print the letter, buy an envelope, and get there. Here is everything a registered letter under 50 g actually costs.
| Item | Česká pošta counter | Postbot |
|---|---|---|
| Postage (registered, up to 50 g) | 83–88 CZK | included |
| Envelope | ~2–3 CZK | included |
| ~2–5 CZK (or a copy shop) | included | |
| Trip and queue | your time | none |
| Total | ~87–96 CZK + time | 96 CZK on credit / 103 CZK one-off |
A registered letter used to cost 110 CZK on both rails; it is now 96 CZK on credit (−13%) and 103 CZK one-off. Credit is cheaper because the fixed card fee is spread across one top-up instead of every single letter.
Honestly: if you own a printer, have envelopes, and live near a post office, a 31 CZK stamp is still the cheapest option. Postbot is for when you would rather not deal with any of that.
How the price is computed
A letter's price has two steps. First we compute the cost — postage for the weight tier plus print per sheet. From the cost we compute the charge with a margin that covers fees and the gap between our estimate and Česká pošta's real price.
- Postage
- 31 Kč
- 3.27 Kč
- Cost
- 34.27 Kč
- Charge
- 43 Kč
- Displayed price
- 50 Kč
Ordinary letter, 1 sheet
- Postage
- 84 Kč
- 3.27 Kč
- Cost
- 87.27 Kč
- Charge
- 96 Kč
- Displayed price
- 103 Kč
Registered letter, 1 sheet
Charge (on credit) = rounded up to the next whole CZK from the higher of: cost + 8 CZK, or cost × 1.10.
Each additional sheet costs 1.05 CZK (incl. VAT).
The displayed price is the one-off payment: the charge plus a 7 CZK allowance for the fixed part of the card-processing fee, never below 50 CZK. On credit that fixed part is paid once per top-up rather than per letter, which is why the credit price is lower.
Postage matches the Hybridní pošta / Kredit tariff Česká pošta bills for letters submitted through DopisOnline (tariff effective 1 April 2026) — the same table @postbot/core's price calculation (chargeFor) uses.
Česká pošta counter tariff
For comparison: this is Česká pošta's public counter tariff — without the print, envelope, and submission Postbot does for you.
Ordinary letter
| Weight | Economy | Priority |
|---|---|---|
| up to 50 g | 31 CZK | 36 CZK |
Registered letter
| Weight | Economy | Priority |
|---|---|---|
| up to 50 g | 83 CZK | 88 CZK |
| up to 100 g | 91 CZK | 96 CZK |
| up to 500 g | 93 CZK | 98 CZK |
| up to 1 kg | 99 CZK | 104 CZK |
| up to 2 kg | 105 CZK | 110 CZK |
Česká pošta prices per its tariff effective 1 July 2026. — Kolik stojí dopis online? (cs) · Kolik stojí doporučený dopis? (cs)