Find your margin.
Make your move.

See the true costs, the stock that earns, and the money waiting on your shelves.

Join the waitlist Resale intelligence. Private alpha.

Net sales$6,240

73 example sales
September 2026

What remains after recorded item costs, selling fees, and outbound postage. Before shared overhead.

Find the signal in your stock

From the price on the listing
to the profit in your pocket.

Costs. Sales. Holding time.
The whole picture, connected.

A sharper view.
A smarter next move.

Your own sales and stock, connected to the decisions you make next.

Make space for better decisions

What earns.

Put sale profit beside time held. Find the patterns worth repeating, and the results worth questioning.

Profit × time.

Illustrative sales

Sale profit / net sales

50%

25%

-10%

More profit.
Less waiting.

0306090 days

Purchase → sale

Games

Nintendo DS Lite

$32sale profit / 9 days held

Net sales: $72
Item costs: -$24
Fees: -$9
Postage: -$7

An example worth looking into. Compare more sales before deciding what to buy next.

View the underlying examples

Item	Sale profit	Days held
Nintendo DS Lite	$32	9
Canon PowerShot A590	$38	16
Wii console bundle	$28	14
Sony Cyber-shot W80	$21	23
Vintage radio	$8	65
Portable DVD player	-$5	81
Game Boy Advance	$40	11
Nikon Coolpix L22	$23	34

Tap, hover, or tab to a point. Example figures, not a forecast.

What sits.

Unsold stock is still part of your business. See where the cash is waiting, and what might need a move.

Time is part of the cost.

Sample inventory

Cost in stock older than 60 days$460

4 of 10 items

$35015d

$28021d

$35027d

$20038d

$24043d

$30055d

$22265d

$4075d

$7888d

$12096d

Highlight stock older than 60 days

15 days90 days

Worth a closer look

DVD player bundle96 days$120

Camera lens88 days$78

Compact camera75 days$40

Age starts at purchase. Values are recorded costs, not expected sale prices.

What it cost.

Keep real costs attached as a mixed lot becomes separate finds. A clear starting point for every sale.

The lot becomes the pieces.

Example allocation

Landed lot cost$120

Cost preserved$120

Camera body60%

of the original landed cost. Allocated by relative value, with the total kept intact.

Purchase, inbound shipping, and handling stay attached as a lot becomes individual listings.

Less digging.
More seeing.

A first look at the next chapter of your resale business. Reports you can explore, down to the records behind them.

Marginspace concept report showing sales flowing into recorded costs, fees, and sale profit — Sales → costs → sale profit

Marginspace concept report highlighting the cost of stock held longer than 60 days — Inventory age → cash tied up

Branded concept screens. Illustrative data. Alpha features may change.

A few good questions.

Who is Marginspace for?

Independent resellers who want a clearer view of true costs, sales, and unsold stock. Individual finds, auction buys, mixed lots—tell us what you sell when you join.

What happens after I join?

Your place is saved and the Profit Check worksheet is ready to download. We’ll contact you when a suitable alpha place is available. Joining the waitlist doesn’t create a product account.

When will it launch, and what will it cost?

The launch date and pricing haven’t been set. Alpha invitations will go out in stages, with supported workflows and any costs explained before you accept. The waitlist is free.

Can I bring my existing inventory?

Import and migration are part of alpha planning. Tools, formats, and field coverage are still being decided. We’ll confirm what works for your records before inviting you to move them.

Are these real business results?

The previews use illustrative data, never customer records. Marginspace is designed around your own sales and stock. This page doesn’t promise a profit uplift, a particular marketplace integration, or automatic repricing.

Private alpha waitlist

Your next move
starts here.

Help shape a clearer way to run your resale business. Join the list for alpha access, and get a little clarity right away.

Your Profit Check worksheet.

A practical way to see what a sale actually leaves you. Yours to download after signup.

Find your margin.Make your move.

A sharper view.A smarter next move.