Filecoin's six-year vest ends mid-October, cutting gross FIL issuance ~75%

The six-year linear vesting of Filecoin's founder allocations hits its endpoint around October 15, 2026, cutting gross FIL issuance by roughly three-quarters, Crypto Briefing and The Defiant report. The two allocations — 300M FIL to Protocol Labs and 100M FIL to the independent Filecoin Foundation — have been releasing straight-line over six years since the October 15, 2020 mainnet launch, per Protocol Labs' own allocation post.

The numbers

Against a 2 billion FIL max supply fixed in the Filecoin spec:

• Vesting pool ending: 400M FIL (PL 300M + FF 100M), ~66.7M FIL/year on a straight 6-year schedule.
• Block rewards (current pace): ~21.7M FIL/year, per the FilecoinTLDR 2026 overview.
• Gross annual issuance: ~88M FIL/year combined, falling to ~22M FIL/year after the cutoff — a 75% drop.
• Circulating supply: ~835M FIL as of early October 2026, per CoinGecko. That leaves ~1.165B FIL still mintable through block rewards over the remainder of the schedule.

SAFT investor vesting ran on a shorter 3-year track and already completed in 2023; the October endpoint is specifically the two founder allocations, which have been the largest single supply tap on the network for six years.

Mechanism — what actually turns off

Filecoin's vesting is enforced at the protocol level: PL's and FF's genesis actors release FIL to spendable form linearly each epoch. The daily tranche does not depend on token price, network activity, or any governance signal. Starting on October 15, that linear tap stops. Block-reward emissions do not change: FIL continues to be minted and paid to miners under the baseline-and-simple-minting curve defined in FIP-0001 and its successors.

The practical effect is on daily spendable supply rather than on long-run supply ceiling. Spendable PL/FF FIL has been a significant share of the daily net sell-side pressure on exchanges for the full six years; the Oct 15 cutoff removes that sell pressure as a steady-state factor.

The Solstice proposal and the service-fee direction

Independently of the vesting end, Filecoin's core-devs have been developing FIP-0118 (Solstice), a draft framework for a "service share" of block rewards that would route a share of future issuance toward Filecoin Pay usage incentives and burn the unearned portion. The draft, posted on filecoin.io and tracked at FIP discussion #1249, proposes 5-percentage-point steps gated on USD-volume targets on Filecoin Pay, and would also deprecate the Fil+ DataCap verifier mechanism.

The two changes compound: the Oct 15 cutoff mechanically reduces gross issuance, and Solstice (if ratified) would route a growing fraction of what remains through a usage-gated channel. The FIL Tokenomics Simulator run against those parameters shows net supply growth falling 86–119% off August 2026 levels by end-2027 — the upper end implies net deflation.

Numbers block

• Total protocol max supply: 2,000,000,000 FIL
• Circulating (Oct 11, 2026): ~835,000,000 FIL (CoinGecko)
• Vesting ending: 400,000,000 FIL (PL 300M, FF 100M), 6-year linear from 2020-10-15
• Annual vesting rate (pre-cutoff): ~66.7M FIL/year
• Annual block rewards (current): ~21.7M FIL/year (FilecoinTLDR 2026 overview)
• Gross issuance drop: ~88M → ~22M FIL/year (~75%)

What to watch

1. Exchange balances on PL/FF wallets. Public labels on Filfox/Filscan tag the PL and FF multisigs; the question is whether withdrawal cadence actually tapers in late October, or whether balances were already pre-positioned.
2. FIP-0118 ratification path. The draft is still in community discussion. The service-share gating depends on Filecoin Pay hitting USD-volume thresholds that have not been publicly disclosed.
3. Miner behavior post-cutoff. Block rewards continue, but the share of market sell-flow attributable to PL/FF ceases; miner-driven flow becomes the dominant on-chain selling signal.
4. Fil+ DataCap deprecation. Solstice removes the verifier/DataCap boost on storage-deal rewards. Operators who built around DataCap have a transition path in the FIP but no committed schedule.

Context

The Filecoin vesting cliff is a known, calendared event — it has been in the project's own tokenomics documentation since the 2017 token sale — rather than a surprise. What the market is pricing is the overlap with FIP-0118: a one-time mechanical issuance drop combined with a draft reroute of what remains. The pattern echoes Ethereum's post-Merge issuance drop of September 2022, where a well-telegraphed emissions change interacted with the market in ways both aligned with and divergent from pre-cutover modeling. The analogue is deliberate on the Filecoin community side; the realized effect is what the November and December net-supply prints will show.