---
title: "How many UK parliamentary by-elections in 2026?"
canonical_url: https://betcrypto.now/events/how-many-uk-parliamentary-by-elections-in-2026
status: live
kickoff_at: 2027-01-01T00:00:00+00:00
trading_closes_at: 2027-01-01T14:59:00+00:00
total_volume_usd: 54959.2
venues: ["Kalshi", "Polymarket"]
categories: ["Politics"]
prices_as_of: 2026-10-09T07:19:29+00:00
publisher: BetCrypto
data_api: https://betcrypto.now/api/v1/events/how-many-uk-parliamentary-by-elections-in-2026
---

# How many UK parliamentary by-elections in 2026?

Live · kickoff 2027-01-01 00:00 UTC · $54,959 traded · listed on Kalshi, Polymarket

## About

This market will resolve according to the total number of UK parliamentary by-elections held in 2026.

Qualifying by-elections must be elections to the UK House of Commons for a vacant parliamentary seat, with polling day scheduled and held within the 2026 calendar year.

The resolution source for this market will be a consensus of credible reporting. In case of ambiguity, this market will resolve solely based on official information from the UK Parliament (https://www.parliament.uk/).

_From Polymarket's listing._

## Exact counts

| Outcome | Probability | Cheapest | Polymarket |
|---|---|---|---|
| 6 | 60% | 66¢ on Polymarket | 66¢ |
| 7 | 28% | 28¢ on Polymarket | 28¢ |
| 8 | 5% | 8.3¢ on Polymarket | 8.3¢ |
| 10+ | 0.9% | 1.2¢ on Polymarket | 1.2¢ |
| 9 | 0.9% | 1.2¢ on Polymarket | 1.2¢ |
| ≤5 | 0.5% | 1¢ on Polymarket | 1¢ |

## Other markets

- Thresholds — 5 outcomes

_Every market's prices are on the event page._

## Open on a venue

- [Kalshi](https://betcrypto.now/go/e/16624?via=md)
- [Polymarket](https://betcrypto.now/go/e/15232?via=md)

---

Probability is the cross-venue consensus (book midpoints, 0–100%). Venue columns are what buying costs there (the ask). Prices move constantly; re-check at the canonical URL or https://betcrypto.now/api/v1/events/how-many-uk-parliamentary-by-elections-in-2026.

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