Can I exchange one property into several, or several into one?

One into several: the identification list is the only new constraint

Nothing in section 1031 requires a one-for-one trade. Treas. Reg. §1.1031(k)-1(c)(4)(i) opens with "The taxpayer may identify more than one replacement property", and then caps how many.

You may name three properties whatever they are worth, or any number of properties whose combined fair market value at the end of the identification period stays within 200% of what you sold. Name more than the rules allow and you are "treated as if no replacement property had been identified".

The 95% rule is the release valve. An over-long list still counts if you actually receive replacement property worth at least 95% of everything you named; how many properties you can identify works through all three limits.

Selling four rentals does not buy you twelve identification slots

This is the sentence consolidators miss: "Regardless of the number of relinquished properties transferred by the taxpayer as part of the same deferred exchange, the maximum number of replacement properties that the taxpayer may identify" is three, or any number inside the 200% ceiling.

What selling four rentals does change is the ceiling itself, which is measured against "the aggregate fair market value of all the relinquished properties as of the date the relinquished properties were transferred". Sell $1,250,000 and you have $2,500,000 of headroom.

So the many-into-one direction almost always has room to spare on value and none on count. Plan the list around the three-property rule and treat the 200% rule as the fallback.

Several sales inside one exchange: your deadlines are set by the first closing

Read Treas. Reg. §1.1031(k)-1(b)(2)(iii) before you schedule anything: "If, as part of the same deferred exchange, the taxpayer transfers more than one relinquished property and the relinquished properties are transferred on different dates, the identification period and the exchange period are determined by reference to the earliest date on which any of the properties are transferred."

Hypothetical: rental A closes on 5 March, rental B on 2 May and rental C on 20 June. Day 45 fell on 19 April, six weeks before rental C even went to settlement, and day 180 lands on 1 September.

Rental C's proceeds therefore arrive with 73 days left on a clock that started without them. Either compress the closings into a few weeks, or split the sales into separate exchanges.

Nothing lets you pick a later start. Paragraph (b)(2)(iv) fixes the transfer date as the day the property is "disposed of within the meaning of section 1001(a)", so a delayed recording, a holdback or a post-closing escrow does not move it.

Separate exchanges give each sale its own 45 and 180 days

The aggregation rule reaches only properties transferred "as part of the same deferred exchange". Two sales documented as two exchanges, each with its own exchange agreement and its own account, carry two independent sets of dates.

The cost is mechanical. A second exchange means a second set-up fee — Exeter's published schedule shows a regulated firm charging $1,000 to $1,500 to open the file, with $300 to $500 added per property — and each file has to acquire replacement property of its own.

Where both exchanges want the same building, the usual answer is two undivided percentages on the deed, since "co-ownership" is real property under Treas. Reg. §1.1031(a)-3(a)(5)(i). Have your attorney confirm the structure before either sale closes.

The tests that decide full deferral are run on totals

Value, equity and debt are compared across every property on each side of the exchange rather than matched pair by pair. Two replacements at $600,000 and $650,000 against a single $1,250,000 sale clear the value test even though neither one does alone.

Debt nets the same way, which is what makes consolidation attractive: one $590,000 loan on a single replacement can stand in for $250,000, $150,000 and $120,000 of mortgages spread over three sales.

Do I have to reinvest the whole sale price sets out the three tests, and the exchange equation guide shows where a shortfall turns into boot.

Going the other way the totals still govern. If one of two replacements carries no mortgage at all, a large loan on the other can still cover every dollar of debt you retired. What never nets is cash you keep against debt you add; does a bigger loan offset cash taken out has that asymmetry.

A worked consolidation, with round hypothetical numbers

Three rentals sell for $310,000, $420,000 and $520,000 within four weeks of each other: $1,250,000 in all. Mortgages of $520,000 are cleared and $70,000 of commissions, title and transfer charges are deducted, leaving $660,000 with the intermediary.

The 200% ceiling is $2,500,000, so value is not the binding constraint; the three-property cap is. The list names one $1,250,000 building, one backup building and one DST interest.

The building closes at $1,250,000 with a new $590,000 loan and the full $660,000 of exchange funds. Value matches the sale, every dollar of equity is redeployed, and the new debt exceeds the $520,000 retired, so nothing is left to be taxed as boot.

The backup slot is the reason to keep the list at three rather than filling it. If the building falls out in week ten, the DST interest on the same list can still take the whole $660,000 without a new identification.

Basis lands on each replacement by value, and the return is filed as a summary

Where one exchange produces more than one replacement, Treas. Reg. §1.1031(j)-1(c) allocates the carried basis "proportionately to each property received in the exchange group in accordance with its fair market value". Two replacements of unequal size therefore start with unequal depreciation schedules.

The split matters most when the replacements differ in land content, because only the improvements are depreciable. A land-heavy parcel receiving a large share of the carried basis will generate far less annual deduction than its price suggests; how the replacement is depreciated sets out the schedules.

The Form 8824 instructions allow a shortcut here: you may "file a summary on one Form 8824" supported by a statement covering each exchange, with total recognized gain entered on line 23 and total basis on line 25.

Reporting multiple properties or DSTs on Form 8824 has the mechanics. Give your CPA the settlement statement for every leg, and confirm the treatment with them or your attorney before the return goes in.