The House Ways and Means Committee approved H.R. 10357 by a 38-5 vote on 09/16/2026, advancing the Digital Asset Tax Certainty Act and opening doors for stablecoin nonrecognition rules plus expanded mark-to-market options under IRC Section 475.
Proposed Stablecoin Nonrecognition Rules
The bill targets transactions in stablecoins pegged near $1.00, providing nonrecognition treatment for redemptions and payments that stay within tight tolerances. This shift could eliminate taxable events for routine conversions to USD or other fiat equivalents beginning in tax years 2027-2028.
Expanded Mark-to-Market Elections
Digital asset dealers and traders may gain broader access to IRC Section 475 elections. This allows ordinary income or loss treatment instead of capital gains treatment, accelerating loss deductions on volatile holdings.
Updating Your Tax Calculator for 2027-2028
Adjust inputs by adding toggle options for stablecoin exemptions effective 01/01/2027. Enable Section 475 simulation modes and import 1099-DA data feeds to align reporting timelines. Run baseline projections first, then layer proposed rules for comparison.
Scenario Comparison: Capital Gains vs. Proposed Relief
Current rules treat a $10,000 USDC redemption as a potential gain if the peg drifts. Under H.R. 10357 assumptions, the same transaction within 1% of par triggers zero recognition. Input your transaction history, apply the exemption filter, and recalculate to see reduced liability.
What-If Projections for Mark-to-Market Traders
Model a portfolio with $25,000 in unrealized losses. Electing mark-to-market converts them to ordinary deductions in the election year. Compare against carryforward limits under present law to quantify cash-flow benefits.
Adjusting for 1099-DA Reporting Interactions
Sync calculator imports with upcoming broker reporting requirements. Verify that stablecoin and mark-to-market assumptions reconcile with Form 1099-DA line items to prevent mismatches during filing.
Practical Calculator Workflows and Tips
Import CSV files from multiple exchanges, then stress-test against 15-20% volatility scenarios. Organize year-end timing strategies such as deferring gains until post-election periods. Creative example: Run a Monte Carlo simulation toggling the exemption to forecast $1,800 in potential tax savings for a moderate-volume trader.
Why These Updates Matter Now
Accurate 2026 planning and budget forecasting depend on modeling both current law and likely changes. Early preparation helps users navigate congressional reconciliation with confidence.
Key Caveats on Bill Passage
Final enactment remains uncertain. Always maintain dual scenarios in your calculator until both chambers complete reconciliation and the President signs legislation.