Fed hikes to 4%: what it means for your US portfolio and RSU vesting

The Federal Reserve raised rates by 25 basis points on September 16, 2026 — to a target range of 3.75–4%. It was a unanimous 12-0 vote. Markets now price in at least one more hike before year-end, with the terminal rate projected between 4.1% and 4.4%.

This is the first rate hike since 2023. It matters for Indian RSU holders and US equity investors in specific, concrete ways that are worth working through.

What actually changed on September 16

The Fed cited persistent inflation — driven largely by energy prices and still-elevated services inflation — as the rationale for the hike. Nonfarm payrolls for August came in at 162,000, far above the 53,000 forecast. The unemployment rate held at 4.1%. The economy isn't breaking.

The 10-year Treasury yield hit 4.818% in the days after the decision — the highest since late 2023. The dollar strengthened across the board. USD/INR moved up.

How this affects Indian RSU holders

1. Your vest income in INR is higher — and so is your tax

RSU perquisite tax is computed in INR using the SBI TT-buying rate on the vest date. When the rupee weakens (dollar strengthens), the INR value of each vest is higher — even if the stock price in USD didn't move.

A concrete example:

Same stock price. ₹1,440 more perquisite income per share — taxed at your slab rate.

If you have a large October or November vest coming, your INR perquisite income will be higher than you may have budgeted for. This flows directly into your advance tax obligation.

2. Your Q2 advance tax (September 15) may have been underpaid

Advance tax for Q2 was due September 15 — one day before the Fed's decision, but the rupee had already been weakening in anticipation. If you calculated your advance tax estimate assuming a lower USD/INR rate than what actually applied to your September vest, you may have underpaid.

The shortfall carries interest under Section 234C at 1% per month from the due date. It's not catastrophic, but worth computing now before December 15 (Q3 deadline) so you can true it up.

How to check: pull your vest dates from your broker's equity plan portal. For each vest, look up the SBI TT-buying rate on that date (SBI publishes historical TTBR data). Compute the INR perquisite value. Compare against what you filed or estimated.

3. Cash between vests is now actually earning something

US brokers have different treatments for idle cash:

If you have USD sitting at a broker between vests — say, proceeds from a partial sell at vest that you haven't repatriated — you should be earning something on it. At IBKR, idle USD above $10,000 earns the IBKR rate automatically. At Indian platforms, cash earns nothing — move it faster.

Alternatively, short-duration US Treasury ETFs (SGOV, BIL) effectively yield ~4.5% annualised with T+1 liquidity. You can park vest proceeds here while deciding on your sell/hold plan. These are fully accessible via LRS.

4. Hold vs. sell calculus shifts at higher rates

Higher interest rates are structurally negative for high-multiple growth stocks. The mechanism: a company's value today depends on discounting future cash flows — and the discount rate used is linked to risk-free rates. When 10-year Treasuries yield 4.8%, the hurdle rate for equities rises.

This doesn't mean "sell everything." But it does change the hold decision for concentrated RSU positions:

Positions where the rate environment is less relevant:

• Large-cap, high-FCF companies (MSFT, AAPL, GOOGL) — rates affect valuation multiples at the margin, but these companies generate enormous cash now. Their value isn't mostly in distant future earnings.
• Dividend-paying industrials — higher rates hurt but they're already priced for it.

Positions where it matters more:

• High-multiple, low-FCF AI/software names trading at 30–50× revenue — the "growth at any price" thesis depended on low discount rates. At 4.8% risk-free, the math is less forgiving.
• SMID-cap names with no near-term profitability.

For RSU holders specifically: you likely hold concentrated stock in your employer. The hold/sell decision should always start from concentration risk, not macro views — but the macro environment now adds a reason to be more disciplined about trimming at vest rather than holding indefinitely.

The rupee angle

USD/INR has been moving up as the dollar strengthens globally. For Indian investors in US stocks, this cuts both ways:

• Short term: your US portfolio looks larger in INR terms. This feels good.
• Long term: if you eventually repatriate, you'll convert at a rate that reflects the current dollar strength — but you also bought at a weaker dollar, so your INR gain includes both the stock return and the currency move.
• Tax: Indian capital gains tax is computed on INR proceeds minus INR cost basis. The currency component of your gain is fully taxable. A stock that returned 15% in USD but the rupee depreciated 8% during your holding period gives you a 24% INR return — taxed on the full 24%, not just the 15% stock return.

What to do now

If you have a vest in the next 60 days:

1. Estimate the INR value using current USD/INR (₹94–96 range). Factor this into your advance tax due December 15.
2. Decide now whether you're selling at vest or holding — don't let the decision default to "I'll think about it later" when the stock is in your account.
3. If selling, check your broker's lot-selection — sell the highest-cost lots first to minimise capital gains.

If you have idle USD at a broker:

1. Move it to an IBKR cash account or a short-duration T-bill ETF (SGOV) to earn ~4–4.5%.
2. Or repatriate it if you have an INR use for it within 6 months — Indian FDs at 6.5–7% still beat USD rates after accounting for rupee depreciation risk.

If you're thinking about rebalancing:

The rate environment adds a reason to review concentration in high-multiple names. But do it systematically — tax-aware, lot by lot — not as a reaction to one Fed meeting.

The one number to watch

The December 17–18 FOMC meeting. Markets are pricing ~60% probability of another 25bps hike then. If that hike lands, USD strengthens further, and the dynamic above repeats for Q4 vests. Plan your advance tax estimates accordingly.

Related: How the RSU perquisite is calculated · Advance tax quarterly calendar for RSU holders · Should you sell RSUs at vest or hold?